The Nitestik Safety Marker is stronger, slicker and cooler than ever. We challenge anyone not to find a use for one! Using Photoluminescent pigment technology, the Nitestik Safety Marker is highly visible even in total darkness. Designed for marking equipment and personal property, it is useful to anything you might wish to locate in the dark. Vibrant coloured and acrylic housed the amazing Nitestik uses state-of-the-art technology that is environmentally friendly. Inside each Nitestik is a rare earth-activated alkali earth aluminate-silicate, that can continuously give off light for over 12 hours in darkness by absorption of visible light. This new age pigment will charge under light, then discharge in darkness 365 days of the year, for more than 10 years.